GB743635A - Improvements in or relating to the manufacture of permanent magnets - Google Patents
Improvements in or relating to the manufacture of permanent magnetsInfo
- Publication number
- GB743635A GB743635A GB34761/53A GB3476153A GB743635A GB 743635 A GB743635 A GB 743635A GB 34761/53 A GB34761/53 A GB 34761/53A GB 3476153 A GB3476153 A GB 3476153A GB 743635 A GB743635 A GB 743635A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- heat
- mould
- casting
- insulating material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0273—Imparting anisotropy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
743,635. Casting-processes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 14, 1953 [Dec. 17, 1952], No. 34761/53. Class 83 (1). In a method of casting anisotropic permanent magnets from an iron-base alloy containing Ni, Al and Co in which at least one of the pole faces is cooled, as by chill plates 3, 4, at least the major portion of the side-wall of the mould between the pole faces consists of metal sheet insulated against heat losses during casting. The mould cylinder 2 of molybdenum or iron sheet is insulated by a cylinder 1 of heat-insulating material which surrounds the cylinder 2 and forms an air-gap therewith, and by heat-insulating material 5 between the cylinder 2 and the plate 3. The casting- channel is at 6. In a modification, Fig. 2, in which the plate 4 is omitted, the molten alloy is poured through a channel 7 in a block of heat-insulating material into a space outside the cylinder 2 which is thereby heated and the alloy subsequently flows over the upper edge 8 into the mould which is vented at 9. In a further modification, Fig. 3 (not shown), a number of magnets are cast in a mould divided into separate moulds by sheet-metal partitions and surrounded by an outer heat-insulating wall.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL743635X | 1952-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB743635A true GB743635A (en) | 1956-01-18 |
Family
ID=19822774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34761/53A Expired GB743635A (en) | 1952-12-17 | 1953-12-14 | Improvements in or relating to the manufacture of permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB743635A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110943A (en) * | 1958-10-02 | 1963-11-19 | Inca Steel Company Ltd | Production of metal ingots, castings and the like |
| US3189957A (en) * | 1956-05-04 | 1965-06-22 | Philips Corp | Method of manufacturing permanent magnets by continuous castings |
| US3233295A (en) * | 1962-02-07 | 1966-02-08 | U S Magnet & Alloy Corp | Method for casting magnet bodies |
| US3233294A (en) * | 1962-02-07 | 1966-02-08 | U S Magnet & Alloy Corp | Method and apparatus for casting vertically stacked magnet bodies |
| DE1253739B (en) * | 1956-03-06 | 1967-11-09 | Binder Magnete K G | Method for producing a component made of soft magnetic material, in particular a rotationally symmetrical component |
-
1953
- 1953-12-14 GB GB34761/53A patent/GB743635A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1253739B (en) * | 1956-03-06 | 1967-11-09 | Binder Magnete K G | Method for producing a component made of soft magnetic material, in particular a rotationally symmetrical component |
| US3189957A (en) * | 1956-05-04 | 1965-06-22 | Philips Corp | Method of manufacturing permanent magnets by continuous castings |
| US3110943A (en) * | 1958-10-02 | 1963-11-19 | Inca Steel Company Ltd | Production of metal ingots, castings and the like |
| US3233295A (en) * | 1962-02-07 | 1966-02-08 | U S Magnet & Alloy Corp | Method for casting magnet bodies |
| US3233294A (en) * | 1962-02-07 | 1966-02-08 | U S Magnet & Alloy Corp | Method and apparatus for casting vertically stacked magnet bodies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1342161A (en) | Method of continuous casting of a ferro-magnetic metal | |
| GB743635A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| GB1132055A (en) | Method for the inoculation of cast iron | |
| GB1342245A (en) | ||
| ES422963A1 (en) | Method of casting parts of high melting point metal in molds | |
| GB752271A (en) | Improvements in moulds for use in the continuous casting of metals and particularly steel | |
| GB1161873A (en) | Improved Method of Manufacturing Steel and Alloys of Iron in the Arc Furnace. | |
| GB2125153B (en) | Method for manufacturing cooling plates for metallurgical furnaces and cooling plate obtained thereby | |
| GB698303A (en) | Process for the production of steel ingots | |
| GB759290A (en) | An improved process of cooling billets in continuous-casting plants | |
| GB652022A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| GB834909A (en) | Method of casting steel and cast iron and mould for carrying out the method | |
| GB743636A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| GB1307208A (en) | Unidirectional solidification of castings | |
| GB766045A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| GB743634A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| GB766046A (en) | Improvements in or relating to the manufacture of permanent magnets | |
| SU399301A1 (en) | WATER COOLING | |
| SU46333A1 (en) | Method of making casting molds | |
| GB598045A (en) | Improvements in or relating to casting of metals | |
| SU1027275A1 (en) | Method of pressure die casting | |
| GB806991A (en) | Improvements relating to apparatus for casting metals under reduced pressure | |
| JPS5662655A (en) | Production of bottomed hollow steel ingot | |
| GB751233A (en) | An improved equipment for casting, especially for continuous casting | |
| GB557204A (en) | Improvements in or relating to the casting of metals |